Kemper - Ribbon Tool R Series Sculpting Set - RSS - Kemper Ribbon Tools name derives from the thin flat ribbon-like steel that is used to form their cutting heads. These tools give you sharp cutting edges with additional strength in the direction of the cut. All of Kempers sculpting tools are available individually. However they do offer two sets, the 8RSS and RSS for the artists convenience. The R Series Sculpting Tools are used for light cutting, slicing, and shaping. These 6 inch double-ended ribbon tools come in a wide variety of shapes. The ends are formed from high-carbon heat-treated steel and are firmly attached to hardwood handles.